Table 1 . Variation in DNA methylation status for MSAP markers in Brassica napus at different developmental stages.

	Tapidor		Ningyou7		Marker number	Subtotal	Methylated alleles (%)	Mapped on LGs	Subtotal	Marker type (%)
Marker type	Seedling	Budding	Seedling	Budding
Stable	−	−	+	+	277	566	86	148	280	90
	+	+	−	−	289			132
Semistable	+	+	−	+	28	61	9	12	24	8
	−	+	+	+	22			8
	−	−	+	−	6			1
	+	−	−	−	5			3
Unstable	+	−	−	+	14	33	5	2	6	2
	−	+	+	−	19			4
Total						660			310

+, methylated alleles; −, unmethylated alleles.